TiO2 Facets Shaped by Concentration-Dependent Surface Diffusion of Dopamine

CORC > 生态环境研究中心 > 中国科学院生态环境研究中心 > 环境化学与生态毒理学国家重点实验室

	TiO2 Facets Shaped by Concentration-Dependent Surface Diffusion of Dopamine
	Yan, Li ; Chen, Haoze ; Jing, Chuanyong
刊名	JOURNAL OF PHYSICAL CHEMISTRY LETTERS
	2019-03-07
卷号	10 期号:5 页码:898-903
ISSN号	1948-7185
英文摘要	Facet engineering highlights the fundamental understanding of kinetic growth of facets with capping agents. Here, we provide a roadmap for modulating TiO2 facets using dopamine as a capping agent inspired by density functional theory calculations and molecular dynamics simulations. Our calculations revealed that the surface diffusion of dopamine and their facet-specific affinity direct the kinetic growth of TiO2{100} and {101} facets into a nonequilibrium crystal shape. Our TiO2 synthesis agreed well with the theoretical predictions, suggesting that the concentration-dependent diffusion is central in accurately tuning a desirable ratio of mixed facets. Our findings shed new light on the diffusion-limited kinetically controlled facet growth mechanism, and this fine-tuning of mixed facets on a single crystal provides a general approach to design and fabricate facets on metal oxides.
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/43043]
专题	生态环境研究中心_环境化学与生态毒理学国家重点实验室
作者单位	1.Chinese Acad Sci, State Key Lab Environm Chem & Ecotoxicol, Res Ctr Ecoenvironm Sci, Beijing 100085, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Yan, Li,Chen, Haoze,Jing, Chuanyong. TiO2 Facets Shaped by Concentration-Dependent Surface Diffusion of Dopamine[J]. JOURNAL OF PHYSICAL CHEMISTRY LETTERS,2019,10(5):898-903.
APA	Yan, Li,Chen, Haoze,&Jing, Chuanyong.(2019).TiO2 Facets Shaped by Concentration-Dependent Surface Diffusion of Dopamine.JOURNAL OF PHYSICAL CHEMISTRY LETTERS,10(5),898-903.
MLA	Yan, Li,et al."TiO2 Facets Shaped by Concentration-Dependent Surface Diffusion of Dopamine".JOURNAL OF PHYSICAL CHEMISTRY LETTERS 10.5(2019):898-903.